The small part of the Star Nurser known as the SH2-284 is visible in this glittering, star-filled star of NASA Hubble space telescope picture. This immense area of gas and dust is a place of stars that shine among the clouds. The bright clusters of newborn stars shine pink in the infrared light, and the clouds of gas and dust, resembling a leaned cumulus cloud, are covered with dark nodes of denser dust.
This picture shows the infrared representation of Hubble, providing a great view of stars that could otherwise be overshadowed by SH2-284 clouds. Unlike visible light, infrared wavelengths can travel through the clouds of gas and dust, giving views of stars formed inside the darkened clouds.
The fog is shaped by the young Central Star Cluster, Dolidze 25 (not visible on Hubble’s pictures), whose stars range from 1.5 to 13 million years (our sun, in contrast, has 4.6 billion years). The cluster explodes the ionizing winds and radiation, pushing the gas and dust of the nebulae and the carvings of intricate shapes and columns, as can be seen in detail. This ionizing radiation gives SH2-284 its classification as a HII region, an emission fog that consists of primarily of ionized hydrogen. The emission nebula like SH2-284 shines with its own light while the stars inside or nearby energize their gas with a flood of intense ultraviolet radiation.
SH2-284 is also an area of low metal, which means that it is bad in elements weighing than hydrogen and helium. These conditions mimic the early universe, when matter were mostly helium and hydrogen and the heavier elements, they just began to form nuclear fusion within the massive stars. Hubble has taken these images as part of the effort to examine how low metality affects the star formation and how it will relate to the early universe.
SH2-284 resides 15,000 light years at the end of the outer spiral hand of our galaxy of the Milky Way, in the constellation monoceros.
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Media contact::
Claire Andreoli
OUR Goddard Space Flight Center,, Greenbelt, MD
Claire.Andreoli@nasa.gov
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